onDispose method
Call this function to register a callback to be called when disposing (i.e. when State.dispose is called).
- the registered callbacks will be invoked in reverse order (i.e. the last registered callback will be invoked first).
- the callbacks are invoked after hookDispose is called.
Implementation
@protected
@nonVirtual
void onDispose(VoidCallback func) {
this._arrOnDisposeCallbacks.add(func);
}